A decoction is a water extract made of herbs by boiling.

Make a decoction is easy. Here is how to do it.

- Put herbs into a pot
- Add 2 cups of water into the pot
- Bring to a boil, then simmer for 15-20 minutes
- Strain the decoction into another container
- Keep the strained herbs in the pot
- Add 2 cups of water to make second water extract
- Bring to a boil again, then simmer for 20-30 minutes
- Strain the decoction into the container and mix the two extracts

Please note:

1. For aromatic flowers and leaves, simmering 5-10 minutes is enough, otherwise it may lose the effective ingredients. So you can first boil other herbs for 10 minutes, then add aromatic herbs.

2. It is prefer to use a ceramic cooking pot instead of a metal pot.

It is usually to take a half of the decoction each time, and two times a day.